Transcript for Diana Nyad to Swim for 48 Hours Straight
square. The one and only diana nyad is here with lara. And it's incredible what you're going to do here. You're just off with this little swim about a month ago. Cuba to key west, 110 miles. Now, what you're doing here, 48 hours consecutively in the pool, all to raise money for those who were affected by superstorm sandy. We were talking about this even before. How are you feeling right now? And why did you decide to do this? It's been five weeks since cuba. Five weeks. I feel great. I'm at that point. That was a training swim for this. It's almost gotten to be like that. But the point is, I don't need to tell you all. You cover it all the time. And you kept up with the story. Congratulations to you for that. But most people around the world, hurricane sandy, wasn't that like years ago? Who cares about that anymore? Well, those people care. Thousands of them are still homeless. We have a number of them swimming with us over the next 48 hours. Not to mention, roscoe, the dog, who survived the hurricane. And is going to swim with us, as well. The point is, this 48 hours, i don't know that we're going to raise millions of dollars. Come on. That's a challenge. But we are going to put the awareness back on the map. These people are still there. They need us. Yep. And you're going to have people in the pool. I'm with you, sister. But I'm not alone. A lot of other big celebrities -- of course, would do anything for you. And for the victims of sandy. And I'm not alone. Who else? We have a number of -- richard simmons will be here. Lighting up the house. Justin tuck from the giants. A number of celebrities. But for us, honestly, new york firefighters. New york police workers. As I said, sandy victims, nurses around the city. Ryan lochte will be here. What stroke will ryan lochte have to do to go my speed? I want to see that. Talk about a dog paddle. You'll have to tune in or come down here. I'm not sure I want to see that. Explain to people. You're going to be in here for 48 hours. And people like lara, and other people, are going to be swimming along with you during various times. This is my lane. I'm on the west side. I don't come to your lane. Don't bother me. I'm going to swim for 48 hours. It's not a big athletic event. I'm going to be in solidarity with the people who did go through sandy and tread water when I take my stops. Bonnie and my crew will be right here, to help me with liquids and all that. But if I want to reach across the lane line and hug you and thank you for being here, i will. We don't have any big rules. 15 minutes. They told me you were going 24 hours until "gma" tomorrow. And those not able to get in the pool for health reasons or other things, you can participate. You can go to our website and donate. It's wonderful to be in here. But if you want to donate, you can do that. Any last words before you get in the pool? Is there a warm towel available. You know you normally start everything, a sports foundation dinner or an event, with a bugle. If you would do the honors, ms. Nyad. We're about to begin the official -- this is not tape. onward. Get your mic. Get in your positions. We're going to count you down. Wait until you're all set. She's all -- she's all set to go. Where is your bathing cap, honey? I don't have one. Let's count it down. Count them down.
This transcript has been automatically generated and may not be 100% accurate.